Merge branch 'fix_frequently_emojis' into 'master'

[emoji-picker] Do not show frequently used category when it's empty

I added one condition.

See merge request !2221

app/assets/javascripts/awards_handler.coffee

@@ -134,6 +134,7 @@ class @AwardsHandler
     _.compact(_.uniq(frequently_used_emojis))
 
   renderFrequentlyUsedBlock: ->
+    if $.cookie('frequently_used_emojis')
       frequently_used_emojis = @getFrequentlyUsedEmojis()
 
       ul = $("<ul>")